Consensus problem involves a system of processes, some of which may be faulty. A fundamental problem of fault-tolerant distributed computing is for the reliable processes to reach a agreement on a same decision. One approach to achieving such agreement is for processes to vote and agree on the majority value. In the absence of faults, this works fine, but the vote even one faulty process can swing the outcome. In this paper we present some result of analysis of a mixed-failure model, where t processes may fail, b out of which is the Byzantine failures and remaining c is crash processes. In a asynchronous model of computation for several distributed problems it turns out that a collection of N processes can tolerate c crash failures if 2c < N, while robustness against b Byzantine failures requires 3b < N. Our algorithm rely on a weak definition of the Byzantine failures which disallows them act as a dead or a crash processes and can tolerate the 2(N – 2c)/3 failures.

Keywords: fault tolerance, distributed algorithms, asynchronous networks, byzantine failures

The possibilities of waveguide elements realization in the structure of multilayered integrated chips of centimeter and millimeter ranges with SIW (Substrate Integrated Waveguide)-technology application are considered. The approaches allowing effectively using in new structures the algorithms and techniques of the electrodynamic analysis and synthesis of passive devices on classical all-metal waveguides are offered. Advantages of use in SIW structure the waveguides of complex cross-section are considered on the example of the microwave band-pass filter.

Keywords: A.A. Gadzieva, V.V. Zemlyakov, S.V. Krutiev

In this article the basic parameters required for residual life assessment and life extension of the technical condition of water or long operated facilities. Inlet water or prolonged use many facilities design elements out of order it - complete destruction of concrete structures water conveyance structures, the formation of defects, normal operational performance of the design water conveyance facilities, such as violation of butt joints, as well as the destruction of the individual elements of the structure, etc. During the development of methods for extending the life cycle of water conveyance structures are obtained by the use of impervious geotextile cover that make for a correct evaluation of residual life of structures may extend its operational life cycle. The question arises of the need for correct and timely manner and to assess the remaining amount of the carrying capacity of water conveyance structures, to evaluate the technical condition and extend its life cycle. To do this, we can apply the proposed impervious geotextile cover. 

Keywords: hydraulic structures, water-conducting structures, life cycle, residual life, technical condition

The analysis of temperature dependence of frequencies of lines  is conducted active in the spectrums of combination dispersion of  perchlorate of natrium. The theory analysis of spectrums is conducted.

Keywords: Perchlorat of natrium, anion, spectrums of combination dispersion, phase change

  Laboratory technology was developed to fabricate flexible piezocomposites with ferroelectric phase - polymers having signal reception factorv • gv 5000 • 10-15 m2 / N. The values of the given coefficient were achieved by switching from a probabilistic (spontaneous) percolation to a correlated one in the process of forming material. This made the production of 0-1–3 piezocomposites, in which a part of piezophase has 0 connectivity, and the other part – 1 connectivity possible. To improve the efficiency of piezocomposite polarization before their manufacturing the surface of piezophase particles, which were obtained by the partial destruction of the porous frameworks, was treated with coupling agent, which did not only improve the polymer adhesion to piezophase, but also allowed the removal of water from the particle surface. The latter effect reduced the value of interfacial conductivity, i.e. prevented the voltage drop of the polarizing field. Matching of polymer conductivity and piezoceramic particles by determining the optimal polarization temperature was carried out as well.  

Keywords: piezocomposites, percolation, connectivity, electrophysical properties

Credit availability to construction sector entities determines for thin-capitalized construction firms the possibility of survival during the crisis and of efficient growth during the economic recovery. The main lenders for construction sector entities are commercial creditors (suppliers) and banks. Although their credit policies are similar, debt to commercial creditors dominate in the balance sheets of borrowers, because of customary business practices in construction industry and regulatory distinctions.

Keywords: information asymmetry, agency theory, trade credit

Provides a method of representation of the scheme of control and evaluation of concrete strength at the factory. The method does not require detailed text-th maintenance, differs with visibility and convenient for workers of the construction laboratories.

Keywords: Сontrol of the selling of concrete strength, the party of commodity concrete mixture, the party of the precast concrete and reinforced concrete, the required concrete strength

This paper presents key capital structure determinants of construction companies and their impact on fund raising and financing mix formation in accordance with the conditions of construction activity. It was found that profitability and tangibility have a positive effect on leverage, risk - the negative and the effect of company size, assets growth rate and taxes is ambiguous.

Keywords: capital structure determinants, profitability, risk, taxes, tangibility, construction companies

The article describes the main problems of circuit simulation. The problem of solving ill-conditioned systems of linear algebraic equations (SLAE) of large dimension. The modified algorithm is a linear algebraic solutions. Described a hybrid evolutionary algorithm for solving linear systems based on the proposed modified method. The results of the pilot study and comparison of the algorithm with the algorithms based on the traditional methods for solving linear algebraic equation, which confirm the advantages of the hybrid evolutionary algorithm.

Keywords: Genetic operators, evolutionary algorithm, the system of linear algebraic equations, computer-aided design.

With a view to the practical use of the proposed method scientifically based selection of the site for the construction of the landfill for the disposal of solid waste consumption of the algorithm, the main stages of the implementation of which correspond to the main stages of site selection methodology. The algorithm provided by the program «Territory» for ЕС.

Keywords: Solid waste consumption, landfill disposal tvedyh consumption waste, wet waste, environmental safety

The article analyzes the sources of waste in the Rostov region, namely the accumulation of toxic chemicals, household activities of the population, the fuel and energy complex. As a result of violations of waste disposal technologies is a high level of air pollution, water pollution, soil degradation, soil and water contamination by heavy metals, spontaneous combustion of landfill biogas allocation.      Consider measures to ensure environmental safety in the Rostov region ""for 2014 - 2020 g provided a long-term regional target program of 2,012m

Keywords: biogas, waste management, waste water, desertification, environmental security, Rostov region

In article findings of investigation of process of drying of conversion lime carbonate in an air-operated tube-dryer are resulted. For the first time dependences of moisture content in a tube-dryer from reference temperature of air or gases and from length of a tube-dryer are received. Results of researches can be used for designing of tubes-dryers for large-tonnage productions of conversion lime carbonate. 

Keywords: conversion lime carbonate, drying, tube-dryer

  Results of researches of gas sensitive properties of zinc oxide films grown by reactive rf magnetron sputtering was shown. Process parameters, affected on the gas-sensitive ratio, response time, recovery time and the type of electrical conductivity of obtained films were identified. Optimal modes of magnetron sputtering of zinc oxide for implementing gas sensors (RF sputtering Zn target in a gas mixture of oxygen and argon at a concentration of 80% oxygen, a chamber pressure of 0.8 Pa and the magnetron power 100 W) were established. Avarage response time on NO2 gas was 5-15 sec.  The obtained values ​​of the gas-sensitivity were in the range 30-67% for NO2 concentrations from 20 to 100 ppm, CO and CO2 from 50 to 100 ppm and 81-97% for higher gas concentrations from 500 to 1000 ppm.  

Keywords: Nanotechnology, magnetron sputtering, zinc oxide, thin films, gas sensitivity

  Analytical dependence for determination of the key design data of the screw is received. Influence of quantity of recyclings of mixing of materials and mixing duration on these parameters is shown. Dependence of quality of a mix on quantity of cycles of mixing is established.  

Keywords: screw mixer, bulks, quantity of cycles, mixing duration, quality of a mix

  In this article the mathematical model dynamic process installations for blast cleaning the surface, and clearly showed the graph of the transition process, given the theoretical integer parameters yield in the specific process conditions.

Keywords: Fluid Technology, a dynamic characteristic of the drive, nozzle - gate, jetting processing surface